-LRB- CNN -RRB- Talk show host Dr. Mehmet Oz is defending himself against a group of doctors who accuse him of `` manifesting an egregious lack of integrity '' in his TV and promotional work and who call his faculty position at Columbia University unacceptable .

In a written statement issued last week , Oz said , `` I bring the public information that will help them on their path to be their best selves . We provide multiple points of view , including mine which is offered without conflict of interest . That does n't sit well with certain agendas which distort the facts . For example , I do not claim that GMO -LRB- genetically modified organism -RRB- foods are dangerous , but believe that they should be labeled like they are in most countries around the world . I will address this on the show next week . ''

That show was taped on Tuesday and in a clip posted online after the taping , he tells his audience he will not be silenced . The episode will air on Thursday afternoon in most markets , Friday in others .

It all started when a group of 10 physicians from across the country emailed a letter to Columbia University expressing disapproval that Oz is on the faculty .

The email sent to Columbia 's faculty dean for Health Sciences and Medicine , Dr. Lee Goldman , said the group is `` surprised and dismayed '' that Oz is on faculty and that he holds a senior administrative position . Oz is vice chair of the Department of Surgery , at Columbia University College of Physicians and Surgeons .

The email was sent by Dr. Henry Miller , a fellow in scientific philosophy and public policy at Stanford University 's Hoover Institute . It was signed by nine other physicians from across the country , none of whom is affiliated with Columbia . They accuse Oz of what they call `` manifesting an egregious lack of integrity by promoting quack treatments and cures in the interest of personal financial gain . ''

They go on to say Oz has `` either outrageous conflicts of interest or flawed judgments about what constitutes appropriate medical treatments , or both . ''

The doctors argue in their emailed letter that Oz shows `` disdain for science and for evidence-based medicine , as well as baseless and relentless opposition to the genetic engineering of food crops . '' It 's worth noting that Miller previously worked at the FDA , at one point reviewing genetically engineered drugs .

As an example , they cite an investigation reported on the show in 2011 in which apple juice was presented as having unsafe levels of arsenic . The FDA disputed the findings and said the report was misleading and irresponsible .

This is not the first time Oz has been called out .

He was in the hot seat on Capitol Hill at a June 2014 hearing on false advertising for deceptive weight loss products featured on his show . Sen. Claire McCaskill , D-Missouri , and chairwoman of the Senate Subcommittee on Consumer Protection , Product Safety and Insurance , said at the hearing he was perpetuating scams , whether it was intentional or not .

Miller and the other doctors who signed the email echo that sentiment , saying Oz is misleading the public and they tell Columbia 's Goldman that having him on the faculty is unacceptable .

The doctors , who are in different areas of the country and different facets of the medical community , all have a connection to Miller although they do not all know each other . CNN has reached out to all of them . Those who have responded say Miller invited them to sign the email .

Orlando , Florida , anesthesiologist Dr. Shelley Fleet told CNN when she received an email from Miller inviting her to sign the email to Columbia , she said of course .

`` He 's a charlatan , and Columbia elevating him to a position of authority is a credence and platform for misleading more people , '' she said in a phone interview .

Fleet was a classmate of Miller 's at MIT .

Dr. Joel Tepper , a radiology professor at the University of North Carolina School of Medicine , is also a former classmate of Miller 's .

He told CNN he does not have a vendetta against Oz . He said he just wants him to `` follow the basic rules of science and state what he knows as fact as fact and state what he does n't know as fact as not fact . ''

He and Fleet share McCaskill 's example of Oz 's promotion of `` miracle weight loss drugs '' on the show as failure on Oz 's part to follow the oath taken by doctors to do no harm .

Dr. Gordon Gill , professor emeritus of medicine and of cellular and molecular medicine at the University of San Diego School of Medicine , wrote in a letter to CNN : `` In discussions with Henry , I agreed that the imprimatur of Columbia Medical School behind Dr. Oz gave an inaccurate message to TV viewers and as Dr. Goldman and I are long time colleagues I was comfortable pointing out these problems to him . ''

Miller worked in Gill 's research lab before he went to medical school .

While the email does not call for any specific action to be taken by the university , Miller told CNN in an email that the group 's goal is `` for Dr. Oz to resign from the Columbia faculty and decide that he 'd prefer a career as a TV celebrity doctor . ''

Oz spokesman Tim Sullivan sent an email to CNN last week listing the names of five of the 10 people who complained about Oz . The email questions the integrity and even the qualifications of those who are pointing fingers at Oz .

For its part , Columbia University is standing by Oz .

Spokesman Doug Levy said in a statement , `` Columbia is committed to the principle of academic freedom and to upholding faculty members ' freedom of expression for statements they make in public discussion . ''

Levy added that the university 's role is to foster research , and it will not take action that hinders public statements by faculty members . The university has no position on what faculty members say in public discussion -- that is their individual academic freedom and is provided to them in the university 's governing documents , he said .

A cardiac surgeon , Oz came to Columbia for his residency after medical school in 1986 and rose through the ranks . He is also the director of the Cardiovascular Institute and Complementary Medicine program at New York Presbyterian Hospital . Oz rose to fame after frequent appearances on `` The Oprah Winfrey Show '' led to the creation of his own show and magazine . He is also co-founder of the consumer health website Sharecare.com .

CNN 's Elizabeth Cohen , Anne Woolsey and Kim Berryman contributed to this report .

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Ten physicians across the country have banded together to tell Columbia they think having Oz on faculty is unacceptable

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Radiology professor says that he just wants Oz to `` follow the basic rules of science ''

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TV 's `` Dr. Oz '' holds a faculty position at Columbia University 's College of Physicians and Surgeons